US Bridges

State Route 128 over School Draw

Fair

Yolo County, California · 03-YOL-128-6.53 · Structure no. 22 0035

Built
1915
110 years old, rebuilt 1957
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
3,200
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 128 over School Draw is a concrete slab carrying State Route 128 over School Draw in Yolo County, California. It was built in 1915 and reconstructed in 1957, so it is 110 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,200 vehicles a day, roughly 6% of them trucks, projected to reach 4,067 by 2041. The structure is 27 ft (8.2 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesState Route 128
CrossesSchool Draw
Location03-YOL-128-6.53
RouteState Highway 128
Coordinates38.51136, -122.00831
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width35 ft (10.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2010)
Projected traffic4,067 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 128 over School Draw built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1957.

What condition is State Route 128 over School Draw in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does State Route 128 over School Draw carry?

About 3,200 vehicles per day (2010 count), of which roughly 6% are trucks.

How long is State Route 128 over School Draw?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.

Who owns State Route 128 over School Draw?

It is owned by the State Highway Agency.